Code obtained from the factorization of makeGraphLinks.xsl and metadataLib.xsl

diff --git a/helm/on-line/javascript/graphLinks.js b/helm/on-line/javascript/graphLinks.js
new file mode 100644 (file)
index 0000000..85e9fbd
--- /dev/null
+++ b/helm/on-line/javascript/graphLinks.js
@@ -0,0 +1,70 @@
+function mkRDFURI(uri)
+{
+   var prefix = "helm:rdf:www.cs.unibo.it/helm/rdf/backward//";
+   var re1 = /#xpointer\(1\/(\d+)\/(\d+)\)/;
+   var re2 = /#xpointer\(1\/(\d+)\)/;
+   // Just one of the following replace will do something
+   uri = uri.replace(re1,",$1,$2");
+   uri = uri.replace(re2,",$1");
+
+   return (prefix + uri);
+}
+
+function removeXPointer(uri)
+{
+   //var re = /#xpointer(\.*)/;
+   // CSC: Why the r.e.s below work and the one above does not?
+   var re1 = /#xpointer\(1\/(\d+)\/(\d+)\)/;
+   var re2 = /#xpointer\(1\/(\d+)\)/;
+   var res = uri.replace(re1,"");
+   res = res.replace(re2,"");
+
+   return res;
+}
+
+
+// (use_rdf_uri==true) if the stylesheet must be applied to the
+// metadata; (use_rdf_uri==false) otherwise
+function mkGraphURL(uri,keys,use_rdf_uri,use_default_uri_set_size)
+{
+   var getterURL = unescape(getParam("param.getterURL"));
+   var draw_graphURL = unescape(getParam("param.draw_graphURL"));
+   var url= setParam(location.href,"keys",keys);
+   var rdfuri = mkRDFURI(uri);
+   url = setParam(url,"xmluri", getterURL + 'getxml%3Furi%3D' +
+    (use_rdf_uri ? rdfuri : removeXPointer(uri)));
+   url = setParam(url,"param.CICURI",escape(uri));
+   var uri_set_size =
+    use_default_uri_set_size ? -1 : document.uri_set_size.elements[0].value;
+   if (uri_set_size > 0)
+    url = setParam(url,"param.uri_set_size",uri_set_size);
+   url = draw_graphURL + 'draw?url=' + escape(url);
+   var url2 = setParam(location.href,"keys","MGL,RT");
+   url2 = setParam(url2,"xmluri",escape(url));
+   if (uri_set_size > 0)
+    url2 = setParam(url2,"param.uri_set_size",uri_set_size);
+   return url2;
+}
+
+function mkDepURL(uri,use_default_uri_set_size)
+{
+   return mkGraphURL(uri,"MDG",0,use_default_uri_set_size);
+}
+
+
+function mkMetaURL(uri,use_default_uri_set_size)
+{
+   return mkGraphURL(uri,"MMG",1,use_default_uri_set_size);
+}
+
+function mkCICURL(uri)
+{
+   var rawuri = removeXPointer(uri);
+   var getterURL = getParam("param.getterURL");
+   var interfaceURL = unescape(getParam("param.interfaceURL"));
+   var url= setParam(location.href,"keys",getParam("param.keys"));
+   url = setParam(url,"xmluri", getterURL + 'getxml%3Furi%3D' + rawuri);
+   url = setParam(url,"param.CICURI",rawuri);
+   url = interfaceURL + "?url=" + escape(url);
+   return url;
+}